SRAM Crank Arm Boots - Black - Pair Envelope Shipping You'll never have to adjust

You'll never have to adjust these bearings

4v 4400mAh battery

ready to face all that mother nature can throw at you

This ensures exceptional accuracy time and time again

SRAM Crank Arm Boots - Black - Pair Envelope Shipping You'll never have to adjustThese are a must have item when using carbon cranks and they will protect the ends of your crank arms from damage. We use these boots with SRAM cranks and they have held up extremely well, doing an exceptional job at protecting the crank arms. No more grimacing when you bash your crank arms on rough trails! These booties are suitable for Descendant Carbon and non Eagle XX1 and X01 cranks. The Eagle carbon cranks have a different size and shape so see